Mother Jones broke this story in June of last year:

Did Mitt Romney Commit Voter Fraud?

Did Mitt Romney commit voter fraud when he cast a ballot for Scott Brown in last year’s special election in Massachusetts? On Monday, one of his lesser known opponents for the GOP presidential nomination, Fred Karger, filed a complaint with Massachusetts state election officials alleging that he voted for Brown, as well as in other Massachusetts elections, when he was not in fact a resident of the Bay State.

Read the rest of Fred Karger’s account here.

Forbes picked up the story adding their two cents:

Did Mitt Romney Live In His Son’s Unfinished Basement Last Year?

Mitt Romney lived in his son’s unfinished basement in Belmont, Massachusetts in 2010 – or at least that what he claimed to the state to be able to vote last year, says GOP candidate Fred Karger.

If that’s true, Romney showed a true commitment to voting for Republican Senator Scott Brown in last year’s special election, since he owns a $12.5 million home in La Jolla, Calif. and a $10 million home in New Hampshire’s Lake Winnipesaukee – but no home in the state he was once governor.

Rest of Forbes article can be read here.

The Democratic Underground republished the story yesterday but there doesn’t seem to be any new information and considering there’s been almost a full year between discovery and now, it seems unlikely that the Romney’s haven’t somehow already managed to dodge the bullet.

Democratic Underground article is here.

The later articles each have the following quote used as a link:

Mitt Romney’s motto: vote early and vote often!

but in each case the link takes me to a private blog and not the source of the quote. If anyone reading this knows the origin of this quote please drop me a comment. Googling it now only leads me back to the same blog – thanks 🙂